In a few cases, in particular when running MsDos batch files from within a VB application, you may want to determine the ERRORLEVEL set by an external application. You can’t
Before posting an Internet request you should check that the user has entered a valid Internet address. You can do this with a parsing routine, or use the following routine
Frequently you need to sort arrays of records using multiple keys. This may be required since one single key does not uniquely identify a record (e.g. you may need both
There is no built-in VB function that lets you know whether a control – such as a ListBox – is currently displaying a vertical scrollbar. Here’s a pair of functions
The GlobalMemoryStatus API function returns detailed information about the current load on the physical and virtual memory. You can use the following code to display the current amount of free
This code checks if a given string is a palindrome. Public Function IsPalindrome(strToCheck As String) As BooleanDim iForward As IntegerDim iBack As IntegerDim iMid As IntegerDim bPalindrome As BooleanIsPalindrome =
Instead of depending on the compiler to instantiate your template, youshould explicitly instantiate them using the following statement: template class vector; // for class instantiationtemplate int& vector::operator[] (int); // for
Beginning with SQL Server 2000, Microsoft added support for SQL-XML interoperability. They did this by expanding some statements that we all know
Memory is precious in Palm OS, so you can’t afford any memory leaks in programs. Therefore, it’s very essential to detect any memory leaks. To do this put breakpoints in